parse-server/GridStoreAdapter.js at master · mslsoftware/parse-server · GitHub

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// GridStoreAdapter

// Stores files in Mongo using GridStore

// Requires the database adapter to be based on mongoclient

var GridStore = require('mongodb').GridStore;

// For a given config object, filename, and data, store a file

// Returns a promise

function create(config, filename, data) {

return config.database.connect().then(() => {

var gridStore = new GridStore(config.database.db, filename, 'w');

return gridStore.open();

}).then((gridStore) => {

return gridStore.write(data);

}).then((gridStore) => {

return gridStore.close();

});

}

// Search for and return a file if found by filename

// Resolves a promise that succeeds with the buffer result

// from GridStore

function get(config, filename) {

return config.database.connect().then(() => {

return GridStore.exist(config.database.db, filename);

}).then(() => {

var gridStore = new GridStore(config.database.db, filename, 'r');

return gridStore.open();

}).then((gridStore) => {

return gridStore.read();

});

}

module.exports = {

create: create,

get: get

};

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